George w



acca ,smc

parametric( .CALIFOEN IA.

Leners Pam No.' 93,043, ma .my 27, 1869.

IMPROVEMENT IN SAWING-MACHINE.

The Schedule referredto in these LettersPatent and making part of the same.

Mew-

To all whom it may concern; v

Be it known that we, GEORGE W, BENSON and FRANK F. DoLAND, of the city andcountyof Sacramento, and State of California, have invented an Improved Portable Sawing Machine ;V and we do hereby declare the following description and accompanying drawings are sufcient to enable anyperson skilled in the art or science to which it most nearly appertains, to make and use our said invention or improve-.

ments without further invention or experiment.

Our invention relates to certain 'new and useful ,im-

provements in portable crosscut-sawimgg; machines,

whereby the saw is fed automatically to the wood'to4 be cut, sol that the amount of feed required will be given at each stroke ofthe saw, regularly and evenly, without any extra exertion ofthe operator; and l i lt consists in placing the saw in a slide, which moves back and forward in Ways. Directly above the'slide, we place a block, which moves up and down with the slide. A spring extends out over the saw, its opposite en'd Abeing secured to the block, so that the end of the spring is always pressing down upon the saw, the block being carried downward as the saw is fed to the wood, and consequently keeping the spring, at all times, bearing upon the saw.

To more fully illustrate and explainfour invention, reference is had to the accompanying drawings, forming a part of this specification, of which- Figure y1 is a side elevation.

Figure 2 is an end view.

Similar letters of reference, in each of the figures, indicate like parts.

A and B are two parallel timbers, supported by upright posts, at a little dist-ance apart, upon a suitable ibundation or frame, O. x f

A driving-pulley, D, is arranged to revolve between the two parallel timbers, at one end, by means of a crank, or otherwise.

At the oppositefend of the timbers is a shaft, a., bearing on the parallel timbers, and carrying, between the timbers, the small pulley, and on the outer end the disk F.

The pulley and disk F are driven by an endless belt passing around the driving-pulley D.

A connecting-i'od,r, is attached to disk- F, by means of a crank-pin, and the opposite end attached to a slide. G.

The slide G moves on ways cdc, on'the lower end of a block, I, which is arranged to move up and down in ways between two .upright standards P P, the ways c c being suiiiciently long vto accommodate the reciproeating slidel to the throwof the eccentric-pin on the diskF.

The saw K is 'attached' to the' front end of the slide G, and moves with it.

Between the driving-pulley D and the small pulley on the parallel timbers is a pulley, J,'operated by a crank, L, within easy reach of the operator.

A cord, @,passes around this pulley, up and around the pulley g, inthe upright standards P l?, and is attached to the sliding block-I, by means of which the saw is elevated, after it has passed through the log to the ground. Y

-The weight of the block and saw is calculated to be y sufficient to feed the lsaw and block downward as the saw cuts.' Y

The saw is kept to its work regularly by a dat metal spring, R, which is attached to the block I, above the saw, and rests upon a yoke, a, which is placed at the end of the slide, the end curving downward toward the saw.

The end of the spliug is slotted, at x, inside of which the back of the saw moves.

This spring moves downward with the block, and

always bears upon it, keeping it to its work with a steady and regular pressure. y

- By this means, we have a wood-sawingmachinewhich can be moved from place to place, as desired, as it can be made very light. A man or boy can operate it with ease, and it caneasily be arranged to be run by.

dog or other power, after it is once placed in position, if desired. Having thus described our invention,

What we claim, and desire to secure by Letters Patent, is In combination with the sliding block I, the spring R, when secured to the block, s as to rise and fall with it, substantially as set forth;

In witness whereof, we have hereunto set our hands and seals.

GEORGE W. BENSON. [11. s.]

Witnesses: FRANK F. DOLAND. [n s.]

SAMUEL ORoss, GEORGE RIDLEY. 

